117289442 has 4 divisors (see below), whose sum is σ = 175934166. Its totient is φ = 58644720.

The previous prime is 117289433. The next prime is 117289493. The reversal of 117289442 is 244982711.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 117267241 + 22201 = 10829^2 + 149^2 .

It is a junction number, because it is equal to n+sod(n) for n = 117289396 and 117289405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29322359 + ... + 29322362.

Almost surely, 2^117289442 is an apocalyptic number.

117289442 is a deficient number, since it is larger than the sum of its proper divisors (58644724).

117289442 is an equidigital number, since it uses as much as digits as its factorization.

117289442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58644723.

The product of its digits is 32256, while the sum is 38.

The square root of 117289442 is about 10830.0250230551. The cubic root of 117289442 is about 489.5003124864.

The spelling of 117289442 in words is "one hundred seventeen million, two hundred eighty-nine thousand, four hundred forty-two".